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在重庆市涪陵区马武镇惠民村进行水稻“3414”肥料田间试验研究,采用三元二次施肥模型、二元二次施肥模型、一元一次施肥模型分别对试验结果进行拟合,结果表明:采用三元二次模型计算的氮、钾肥最佳施肥量偏高,由磷、钾二元二次肥料效应模型得到的磷肥最佳施肥量偏高,综合考虑得出水稻的最佳施肥量为每公顷施N 200 kg,P2O590 kg,K2O 120 kg;N,P2O5,K2O施用比例为1∶0.45∶0.6.
In paddy field of Huimin Village, Mawu Town, Fuling District, Chongqing, paddy “3414” fertilizers field experiment was conducted. The results of the experiment were fitted by using the ternary secondary fertilization model, the binary fertilization model and the primary fertilization model respectively. The optimal fertilization rate of nitrogen and potassium fertilizers calculated by the ternary quadratic model is high. The optimal fertilization rate of phosphorus fertilizers obtained by the binary fertilization model of phosphorus and potassium is high, and the optimum fertilization rate of rice is obtained N 200 kg per hectare, P2O590 kg, K2O 120 kg; N, P2O5, K2O application ratio of 1: 0.45: 0.6.